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Australian Biological Resources Study

Checklist of the Lichens of Australia and its Island Territories
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References
Lecanora planaica Lumbsch
  J. Hattori Bot. Lab. 77: 124 (1994). T: Urriara Crossing, Murrumbidgee R., A.C.T., 22 Apr. 1975, J.A.Elix 741; holo: CANB; iso: MEL.  
  Thallus thin to thick, verrucose to verruculose or subsquamulose, yellowish white to yellowish grey, epruinose. Soredia absent. Prothallus not visible. Apothecia immersed when immature, becoming sessile, 0.4–1.0 mm diam.; disc pale to dark red-brown, epruinose; margin concolorous with the thallus, thin, entire, ±verrucose to crenulate. Cortex hyaline, ±gelatinous, inspersed with small crystals, 15–20 µm thick laterally and 20–25 µm thick basally. Amphithecium with large crystals insoluble in KOH (pulicaris-type). Parathecium hyaline, without crystals, 10–15 µm thick. Epihymenium red-brown, c. 10–12 µm thick, K–, without crystals (glabrata-type). Hymenium, subhymenium and hypothecium hyaline. Paraphyses sparingly branched and slightly thickened apically. Ascospores ellipsoidal, 9.5–13.0 × 5.5–7.5 µm. CHEMISTRY: Thallus and apothecial margin K+ yellow, C–, Pd+ pale orange; containing atranorin (major), planaic acid (major), chloroatranorin (minor), hyperplanaic acid (minor), isohyperplanaic acid (minor) and superplanaic acid (minor).
  This endemic lichenoccurs on siliceous rocks and on soil over rocks in exposed situations in Qld, N.S.W., A.C.T., Vic. and Tas.  
  Lumbsch & Elix (2004)  

Checklist Index
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References

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